Typewriting machine



F. W. YOUNG TYPEWRITING- MACHINE Dec. 16, 1 24- 1,519,524

Filed Nov. 27, 1922 WITNESSES W INVENTEHQ HIE ATTORNEY Patented Dec. 1%, 19.24.,

UNITED STATES F AT E F I QE FREDERICK WM. YOUNG, OF UTICA, NEW YORK, .QSSIGNGR TO REMINGTON TYPE- WRITEE CQMPANY, 01F ILIGN, NET/V YORK, A GGR-POB-ATIGN OF NEW YORK.-

TYPEWBIITING IiIACI-IINE.

Application filed November 27, 1922.

To all whom it may concern.

Be it known that I, FREDERICK W. YOUNG, citizen of the United States, and resident of-Utica, in the county of Oneida and State of New Yorln have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

My invention relates to stopping means for the type bars of writing machines and has for its object the provision of a new and improved type bar contact device or anvildesigned to minimize the noise result-- ing from the impact of the type bars with out sacrificing the advantages resulting from the employment of an anvil.

To the above and other ends which will hereinafter appear, my present invention consists in the features of construction combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims.

In carrying out my invention in the pres-- ent instance, I provide a flexible tubular anvil made preferably of tempered carbon steel and having a longitudinal slot. This split or slotted tubular device reduces the noise of impact to a considerable extent and also affords a slight yield under the type bar blow, which result is quite desirable in that it improves the clearness of the imprint and relieves the operators fingers from undue shock. In case of breakage cracks or wear resulting from usage the anvil may be reversed thus prolonging its life. It is also'readily detachable so that it may be replaced by a new anvil without requiring the entire segment or supportto be discarded. A filling is preferably introduced into the tube.-

M'y invention will he describedin detail in connection with the accompanyingdrawings which illustrate thepreferred' form of the invention.

Figure 1 being a fragmentary'front elevation, showing-a type bar supporter segmentwith my invention applied thereto.

Figure 2 is a vertical sectional view taken ab'out c'entrally ofthe' type bar segment and drawn on an enlarged scale, the View showingoneof the type bars incontact withthe anvil.

Serial No. 603,430.

segment or support 1 is arcuate in form and vert1cally fixed by screws 2 to the framing of the machine, below and somewhat for ward of the platen 3. The segment 1 is formed with a series of radial guide slots indicated at 4 in which the type bars 5 are arranged, each type bar being provided at its outer end with a type block 6 having an upper case type and a lower case type adapted for co-operation with the front face of the platen 3. The type bars are pivoted on a common fulcrum wire 7 secured to the segment 1 and are operative by the usual train of key actuated devices, beingswung thereby upward and rearward on the fulcrum wire 7 to printing position. As they approach the platen the key operated type bars cooperate with a guide opening 8 in a center guide 9 secured by screws 10 to the front of the segment. Arranged at either side of the center guide 9 are upstanding guide fingers or devices 11 having heads or securing portions 12 which receive screws 13 whereby said devices are fixed to the front face of the segment 1 in position to cooperate with and guide certain parts of the paper guiding and line finding mechanism of the machine not herein shown.-

In the No. 10 Remington type-writing machine, as well as in other typewriti' (r ma chines as heretofore constructed, there has been employed a solid type bar anvil or con tact device made usually in the form of a rib or integral projection on the type bar segment itself. The noise of the impact of the type bars on such solid anvil and the reaction on the finger is considerable: and the object of the present invention is to re* duce this noiseand reaction while at the same time retaining the advantages of the anvil construction. To these ends I have replaced the solid anvil withan anvil l4 made in the form of a severed tube and bent to an arc shape as shown. The tube is preferably made of carbon steel and tempered, and is formed at its under side with a longitudinal slotway or slit, indicated at 15, the two being C-shaped in cross section.

The anvil it is mounted on the type bar segment 1, being seated therein in an arc-uate groove 16, the bottom wall of which is undercut at 16 The groove 16 is V-shaped in cross section, and is concentric with the fulcrum wire 7, and so proportioned as to leave the front or striking face of the anvil projecting forward slightly beyond the fa .3 of the segment. as most clearly appears from Fig. 3. A. segmental retaining plate or clamp 17 having an. angularly disposed flange or contact portion 18, is detachably secured to the front t'a cc of the segment above the anvil. The screws 13 may be employed for this purpose, the plate 17, 18 being clamped between. the front face of the segment and the heads 12 of the guide pieces 11,12. A supplementary central screw it) may also be employed to help secure the retaining plate 1? in place. The flanged por tion 18 of the retaining plate contactively engages with the upper portion of the tubular anvil. l t and provides means to retain it in position in its seat 16, leaving the front or contact portion of the tube projecting through and beyond an opening formed in the segment jointly by the retaining plate 17, 18 and the seat or under-cut 16, this opening being in effect a contact slotway which affords three lines of bearing for the anvil and is so narrow at its front or moutl as to prevent the escape or displacement of the tubular anvil. W] hen the anvil is in positien it will be obse ved that its slot or longitudinal opening 15 is preferably disposed at its under side and is covered by the bottom of the undercut so that no part of the slit is exposed through the contact opening and only a solid part of the anvil. is present ed through this contact opening as a face against which the type bars may strike at different points along the length of the anvil. The points of this striking face lie above the corresponding points of the slot 15 which is hidden or covered. The securing plate l7, 18 is at the opposite side of the striking face from the slot or slit 15.

After imprint the speed of the type bar return movement is increased as the result of an impulse or reaction communicated to the bar from the slightly compressed or flexed anvil, which is sufficiently elastic to cause a relatively gradual arrest of the type bar in printing direction and also a relatively speedy return movement thereof. In consequence of the slight yield or give of the longitudinally divided tubular anvil. the contact of the type bars with the anvil may if desired be timed so that such contact shall and the like, it is to be understood that they are not to be construed in any limiting sense.

Thus far I have described the anvil without refer nce to its filling or contents $20 which is provided for the purpose of still further deadening the sound. Said filling 20 is preferably made of raw-hide in the form of a cord or solid core piece, and. preferably fits the entire bore of the anvil, though not necessarily tightly. It is somewhat resilient and tends to straighten when withdrawn from the tube, attaining the shape shown in the detached view, Fig. In practice it is found that the filling or in.- sulating material. 20 promotes to a considerable eXtent the sound deadening properties oft-he tubular anvil. Of course other material besides rawhide may be used as insulating material or filling, such as felt, rubber, cotton, etc. and it may be stuffed into the tube or otherwise introduced, although having the core in the form of a cord is a convenience as it may be more readily introduced and withdrawn. in Fig. 3 the core piece 20 has been omitted so that the anvil proper might more clearly be shown. it is to be understood that the improved anvil may be employed without the filling.

Various changes may be made without departing from my invention.

Nhat I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a platen, a set of type bars, and a split tubular anvil having a longitudinal opening, said anvil being reversible.

2. In a typewriting machine, the combination of a platen, set of type bars, and an arcuate split tube arranged in the path of the type bars so as to be struck at different points by said type bars as they near the ends of their printing strokes, said. anvil being reversible.

3. In a typewriting machine, the combination of a platen, a set of type bars, and an anvil with which said type bars cooperate, said anvil being circular in cross section but formed with a longitudinally extending slot.

4. In a typewriting machine, the com bination of a platen, a type bar support,

a set of type bars thereon, and an anvil. seated in a groove in said support, the anvil being provided with a longitudinal slot which is covered by said groove and is so arranged that the blows of the type bar strike in a direction tending to close said slot.

In a front strike typewriting machine, the combination of a platen, a type bar support, a set of type bars thereon, and an anvil seated in a groove in said support, the anvil being provided with a longitudi-' nal slot which is covered by said groove, the slot extending along the under side of the anvil and the type bars being adapted to strike the anvil at its front side above said slot.

6. In a front strike typewriting machine, the combination of a platen, an upright type bar segment formed with an arcuate V-shaped groove, type bars on said segment, an arcuate tubular anvil seated in said groove and provided at its under side with a longitudinally extending slot, and securing means for preventing displacement of the anvil from the segment, the securing means being at the opposite side of the front striking face of the anvil from said longitudinally extending slot.

7. In a typewriting machine, the comhination of a platen, a type bar support. type bars, and a C-shaped anvil arranged within a groove in said support. the arrangement being such that the slotted portion of the anvil is within the groove and an uninterrupted face of the anvil is presented to the types, said uninterrupted face heing between the slotted portion of the an vil and the opposite back portion contactirn with. the support 8. In a typewriting machine, the coinhination of a platen, a type bar support, type bars, and a tubular slotted anvil arranged within a groove in said support. the arrangement being such that the slotted portion of the anvil is within the groove and an uninterrupted face of the anvil is presented to the types, the tubular anvil having three lines of hearing within the groove.

9. In a typewriting machine, the combination of a platen, a set of type bars, a CZ-shaped anvil having a hollow interior, and a filling in said interior.

10. In a typewriting machine, the 001m bination of a platen, a set of type bars, a one-piece tubular anvil, and a core of rawhide or the like substantially filling the in terior of said anvil.

11. In a typewriting machine, the combination of a platen, a set of type bars, a onepiece tubular anvil, and a separate cord that may he introduced as a whole endwise into and removed from the interior of 1m anvil.

12. In a typewriting machine, the combination of a platen, a set of type bars, a one-piece arcuate split tube arranged in the path of the type bars so as to be struck at different points by said type bars as they near the ends of their printing strokes, and an insulating cord in said tube, said cord being adapted to be withdrawn endwise from said tube.

13. In a typewri-ting machine, the combination of a platen, a set of type bars and a split tubular anvil having a longitudinal opening, said anvil being so arranged that the type bars strike on the unsplit side of the anvil. and tend to cause the edges of the split portions to yield towards each other Signed at Ilion, in the county of Herlzimer and State of New York, this 22nd day of November. A. D. 1922.

FREDERICK W M. YOUNG.

itnesses H. J. PHILLIPS, E. M. l VALno. 

